Medical instrument handle



FIG. 1 is a perspective view of a medical instrument handle showing my new design; the broken lines depicting an instrument are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a top plan view; and

FIG. 5 is a bottom plan view. 

The ornamental design for a medical instrument handle, as shown. 